MAINTENANCE (Continued)
3.Lubricate the Motor Seal (32) with
4.Align the tab of the Motor Clamp Washer (33) with the internal notch in the Housing and install it over the rotor hub and End Plate Alignment Pin against the Motor Seal. Make certain the Pin enters the hole in the Washer and the Washer is flat against the Seal.
5.Apply some
6.Thread the assembled Gear Case (43), output spindle trailing, into the Motor Housing and using a
7.For Models with a Clutch, place the narrow end of the Clutch Return Spring (46 or 65) in the Gear Case against the inner race of the Spindle Bearing (44).
8.For Models with Direct Drive, insert the hex end of the Clutch Shaft (81) that does not have the step, into the hex recess of the Spindle Assembly (42).
For Models with a Clutch, place the hex drive end of the Clutch Input Driver (47 or 66) on the Spring and compress the Spring until the hex on the Driver enters the hex recess in the Spindle Assembly (42). While holding the Driver in position, engage the raised bar on the face of the Driver with the jaw of the Cam Jaw (54 or 70).
9.If the Clutch Housing Bearing (83) was removed, stand the Clutch Housing (82) on the table of an arbor press with the smaller, externally threaded end down- ward.
10.Using a Needle Bearing Inserting Tool as shown in Dwg. TPD786 with a 0.030” (0.76 mm) thick washer that clears the inner bore and outer edge of the Bear- ing inserted between the Bearing and stop surface on the tool, press the Bearing into the Clutch Housing. The trailing end of the Bearing must be between 0.025” and 0.035” (0.63 and 0.89 mm) below the face of the bore into which the Bearing is pressed.
Needle Bearing Inserting Tool
SHOULDER TO
REGULATE DEPTH
PILOT TO FIT I.D. OF BEARING.
LENGTH OF PILOT TO BE
APPROXIMATELY 1/8” LESS THAN
LENGTH OF BEARING
(Dwg. TPD786)
11.For Models with Lever Start, slide the Wave Washer (87A) followed by the Shutoff Spacer (87) onto the hub of the Bit Holder (84) and insert the Bit Holder into the large end of the Clutch Housing (82) and push the output end through the Clutch Housing Bearing.
For Models with Lever Permit, insert the Bit Holder (84) into the large end of the Clutch Housing (82) and push the output end through the Clutch Housing Bearing
The following step has parts with a
12.Install the assembled Clutch Housing over the clutch components and thread it onto the Gear Case. Using a
13.Invert the assembled tool in the vise jaws and lightly grasp the flats on the Gear Case with the inlet end of the tool upward.
14.Insert a 5/8” dowel through the opening in the Back Cap (6), and using the dowel as an alignment device, install the three Muffler Elements (8) in the cavity of the Back Cap. Make certain the notches in the outer- edge of the Elements fit over the memory chip pocket in the bottom of the Cap.
15.If the tool is equipped with a Memory Chip (9), install it (with the leads entering first) in the pocket at the bottom of the Back Cap.
16.Make certain the tab on the inside edge of the Back Cap Gasket (7) is aligned with the pocket for the Memory Chip and install the Gasket, metal face lead- ing, in the recess of the Back Cap against the face with the cavity containing the Muffler Elements.
17.Position the gasket end of the alignment dowel against the inlet hub on the Motor Housing. Align the flats on the Cap with the flats on the Housing. Orient the Back Cap to clear the Reverse Lever (19) and slide the Back Cap Assembly off the alignment dowel and onto the Motor Housing.
18.For all Models with a Shutoff Clutch and Lever Per- mit Models with a Cushion Clutch, install the Push Rod (34) into the central hole in the inlet hub. The Rod will enter the assembled motor and disappear from view when released. Install the Shutoff Valve (20), small end first, in the same opening.
19.Being careful not to damage it, insert the Throttle Valve Seat (12) into the central opening at the inlet end of the Motor Housing at an angle until it clears the threads in the Housing. Using a rod with a flat end and no sharp edges, push the Seat to the bottom of the opening until it seats flush.
36 | P7440 Edition 10 |
